[Fix/#457]: Invite link appearance fixed/Copy to clipboard button added/Improvements in the slash command panel UI/Bug-fixes

[umangutkarsh]

Brief Title

This PR fixes ** Bug1 + Bug2 + Feature1** of issue: #457

Acceptance Criteria fulfillment

• The invite link (for channel) button should not appear if the logged in user is not an admin.
• A copy to clipboard button (for invite link) can be added to improve UX.
• Pressing the enter key doesn't send the message with slash command.
• Improve slash command panel
• Unexpected error occurs when the invite link is selected and dragged.
• Linting Errors fixed.

Addresses #457

Video/Screenshots

inv-issue.webm

slash-c.webm

[umangutkarsh]

Hey @abhinavkrin , @sidmohanty11 . Please review this. Fixed some bugs, and added a minor feature.

Thanks

[sidmohanty11]

LGTM! I had one question, should the invite link redirect the user to RC or the user's webpage where EC is embedded

[umangutkarsh]

LGTM! I had one question, should the invite link redirect the user to RC or the user's webpage where EC is embedded

Thanks for reviewing the PR.
I have not really tried embedding EC on some other webpage. I usually use the docker image of RC to develop and test EmbeddedChat, and the link redirects to the RC.

[umangutkarsh]

Hey @sidmohanty11 @abhinavkrin can you please review this PR?

Thanks

[umangutkarsh]

Hey @sidmohanty11 @abhinavkrin can you please review this PR?

Thanks

Hi @sidmohanty11 can you please review this? Thanks